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Unit 1:
Ch. 1
Ch. 2
Ch. 3
Interlude A
Unit 2:
Ch. 4
Ch. 5
Ch. 6
Ch. 7
Ch. 8
Ch. 9
Interlude B
Unit 3:
Ch. 10
Ch. 11
Ch. 12
Ch. 13
Ch. 14
Ch. 15
Interlude C
Unit 4:
Ch. 16
Ch. 17
Ch. 18
Ch. 19
Interlude D
Unit 5:
Ch. 20
Ch. 21
Ch. 22
Ch. 23
Ch. 24
Ch. 25
Ch. 26
Ch. 27
Ch. 28
Ch. 29
Ch. 30
Interlude E
Unit 6:
Ch. 31
Ch. 32
Interlude F
Unit 7:
Ch. 33
Ch. 34
Ch. 35
Ch. 36
Ch. 37
Ch. 38
Interlude G
The animations require the latest Flash 7 and Shockwave plug-ins.
11.1: Activity: Chromosomes and fruit flies
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Explore some of the initial experiments by T.H. Morgan that helped to uncover the mechanism of genetic recombination and crossing over.

11.2: Activity: Crossing over
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Review the process of crossing over, and its effects.

11.3: Tutorial: Independent assortment and gamete diversity
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This tutorial explores how the random distribution of maternal and paternal chromosomes in gametes during meiosis produces new combinations of alleles.

11.4: Tutorial: Human pedigree analysis
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This tutorial explores how a pedigree chart may be used to study human genetic disorders.

11.5: Activity: Interactive Punnett square
ThumbnailUse an interactive Punnett square to explore the genetic mechanisms of several inherited diseases.

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Norton Gradebook

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